"If the height of a triangle is 5cm less than the length of it's base and if the area of the triangle is 52cm squared, find the length of the base and also the height of the triangle."
I have tried so many different ways and formulas and nothing seems to work for me. I get so far and then have no idea what to do next.
Any help would be greatly appreciated.
by height I'm assuming it means perpendicular,
factors are (x+13)(x-8)
reject negative answer because length must be positive
It's a quadratic equation so your solutions will be (b+13)(b-8)
therefore b= -13 and b= 8
since you cant have negative area your anwer is 8
you just factorise, use the minus b formula or just do it in your head..
you can do either but what i normally do is a 5 second rule so if it's not obvious what the factors are I use the minus b formula but since joe 9721 had it already factorised it i just used his figures. For ths question i probably would have used the minus b but any of the three ways would have worked
It's a pretty general question so I found it online, saves having to write it out!